Dick Miles and folkie dave are both correct in their statements about the purpose of the Folk Song Society. It was international in its outlook, and not specifically English. The Journal published a small number of articles about non-English song, including a significant issue about Gaelic song.
If anything, the dance side of EFDSS became more international in outlook (dance groups invited to the Albert Hall festivals, Sidmouth etc) and the song side became less international.
Derek Schofield